Ruling · Śītalāṣṭamī · 2066

Friday 19 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 97 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Thursday 18 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

0 of 48 minutes covered

Midday of Friday 19 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

48 of 48 minutes covered

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 16:27 on Thu 18 Mar to 14:27 on Fri 19 Mar.

    2066-03-18T08:27:15Z → 2066-03-19T06:27:28Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 18th, 12:02–12:50 on the 19th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 5829 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2066: Friday 19 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2066 falls on Friday 19 March. Aṣṭamī runs from 16:27 on Thu 18 Mar to 14:27 on Fri 19 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2066/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 19 Mar
Ahargaṇa, classicalDisc centre, no refractionFri 19 Mar
compat-drikpanchangComparison profileFri 19 Mar
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/shitalashtami · ruleset 2026.3-draft

Month
Phālguna, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“K 8 Sitalastami, (purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles01:27 → 23:2712:3748 min12:370 min18 Mar
Chicago03:27 → 01:2712:3548 min12:350 min18 Mar
Jersey City04:27 → 02:2712:4148 min12:400 min18 Mar
Port of Spain04:27 → 02:2711:5048 min11:500 min18 Mar
London08:27 → 06:2711:4548 min11:450 min18 Mar
Durban10:27 → 08:2711:4048 min11:390 min18 Mar
Dubai12:27 → 10:2712:0324 min12:030 min18 Mar
Delhi13:57 → 11:5712:050 min12:050 min19 Mar
Kolkata13:57 → 11:5711:210 min11:2137 min19 Mar
Singapore16:27 → 14:2712:490 min12:4848 min19 Mar
Sydney19:27 → 17:2712:390 min12:3948 min19 Mar
Suva20:27 → 18:2711:500 min11:5048 min19 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shitalashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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